I mean, theres no way to really know what the purpose of the sim is, if youre in a sim, except for that it probably isnt one that conflicts with whatever you see. It doesnt have to be an experiment.

Mind, I dont think the universe is a sim, but it seems to me that to truly prove that it cant be the case, there have to be absolutely no scenarios where being in a sim is consistent with what you experience. And there's probably a potential purpose that some entity might have to justify any scenario that can be constructed, especially given that the simulator need not be human and therefore might have completely alien motivations.